Embryology and ultrasound diagnoses for cardiovascular abnormalities Embryology and ultrasound diagnosis for cardiovascular abnormalities 并列题名:Embryology and ultrasound diagnoses for cardiovascular abnormalities 并列题名:Embryology and ultrasound diagnosis for cardiovascular abnormalities First trimester ultrasound diagnosis of fetal abnormalities 并列题名:First trimester ultrasound diagnosis of fetal abnormalities